1678C over Post Creek
FairPosted for loadComanche County, Oklahoma · 6.8 MI S Cache · Structure no. 175320000000000
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 194 ft
- 3 main spans
- Daily traffic
- 116
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
1678C over Post Creek is a prestressed concrete stringer/multi-beam or girder carrying 1678C over Post Creek in Comanche County, Oklahoma. It was built in 1969, so it is 56 years old, older than the Oklahoma average of 47.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 116 vehicles a day, roughly 15% of them trucks, projected to reach 186 by 2042. The structure is 194 ft (59.1 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 1678C over Post Creek built?
It was built in 1969, making it 56 years old in 2025.
What condition is 1678C over Post Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.
How much traffic does 1678C over Post Creek carry?
About 116 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is 1678C over Post Creek?
The structure is 194 ft (59.1 m) long with a longest span of 64 ft (19.5 m) and a deck 33 ft wide.
Who owns 1678C over Post Creek?
It is owned by the County Highway Agency.